Dual nonconvertible buccal tube



FIG. 1 is a perspective view of the dual nonconvertible buccal tube design of this invention depicting the front, top and right side thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a dual nonconvertible buccal tube, as shown and described. 